How AI Agent Memory Works
Separate model context, task state and saved preferences. Use Python and SQLite to test consent, scoped retrieval, stale updates, expiry and deletion.
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Connect an AI Agent to an API
Build a read-only HTTP adapter with validated inputs, controlled errors and bounded retries. Test a local API without model credentials or real secrets.
Build Your First AI Agent
Build a bounded support assistant with one read-only tool, a reviewable trace and clear handoffs. Run fixtures first, then connect an optional model.
Build Your First MCP Server
Build a local read-only MCP glossary server with the official Python SDK. Test discovery, valid calls, rejected inputs and subprocess shutdown.
MCP Tools, Resources, and Prompts
Expose one documentation service as a resource, search tool and reusable prompt. Run discovery and use locally, then check host support and access boundaries.
API vs MCP: What's the Difference?
Compare a direct HTTP API with an MCP adapter through the same local weather lookup, including discovery, schemas, access boundaries and maintenance costs.
SkillsHats Visualize
Some things click
when you see them.
Follow an algorithm step by step. Change an input. Watch a system respond. Build an intuition for what the code is doing.
Explore visual lessonsData structures & algorithms · System design
Beginner
Binary search
One comparison. Half the possibilities.
2
5
8
12
mid
16
23
38
Looking for 23: 12 is too small. Keep the right half.
Worst-case time
O(log n)
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